PetscErrorCode AlgJacobian(SNES snes,Vec X,Mat A,Mat B,void *ctx) { PetscErrorCode ierr; Userctx *user=(Userctx*)ctx; PetscFunctionBegin; ierr = ResidualJacobian(snes,X,A,B,ctx);CHKERRQ(ierr); ierr = MatSetOption(A,MAT_KEEP_NONZERO_PATTERN,PETSC_TRUE);CHKERRQ(ierr); ierr = MatZeroRowsIS(A,user->is_diff,1.0,NULL,NULL);CHKERRQ(ierr); PetscFunctionReturn(0); }
PetscErrorCode TestMatZeroRows_with_no_allocation(Mat A,IS is,PetscScalar diag) { Mat B; PetscErrorCode ierr; /* Now copy A into B, and test it with MatZeroRows() */ ierr = MatDuplicate(A,MAT_COPY_VALUES,&B);CHKERRQ(ierr); /* Set this flag after assembly. This way, it affects only MatZeroRows() */ ierr = MatSetOption(B,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_TRUE);CHKERRQ(ierr); ierr = MatZeroRowsIS(B,is,diag,0,0);CHKERRQ(ierr); ierr = MatView(B,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = MatDestroy(&B);CHKERRQ(ierr); return 0; }
int main(int argc,char **args) { Mat C; PetscInt i,j,m = 5,n = 5,Ii,J; PetscErrorCode ierr; PetscScalar v,five = 5.0; IS isrow; PetscBool keepnonzeropattern; ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; /* create the matrix for the five point stencil, YET AGAIN*/ ierr = MatCreate(PETSC_COMM_SELF,&C);CHKERRQ(ierr); ierr = MatSetSizes(C,PETSC_DECIDE,PETSC_DECIDE,m*n,m*n);CHKERRQ(ierr); ierr = MatSetFromOptions(C);CHKERRQ(ierr); ierr = MatSetUp(C);CHKERRQ(ierr); for (i=0; i<m; i++) { for (j=0; j<n; j++) { v = -1.0; Ii = j + n*i; if (i>0) {J = Ii - n; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} if (i<m-1) {J = Ii + n; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} if (j>0) {J = Ii - 1; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} if (j<n-1) {J = Ii + 1; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} v = 4.0; ierr = MatSetValues(C,1,&Ii,1,&Ii,&v,INSERT_VALUES);CHKERRQ(ierr); } } ierr = MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = ISCreateStride(PETSC_COMM_SELF,(m*n)/2,0,2,&isrow);CHKERRQ(ierr); ierr = PetscOptionsHasName(NULL,NULL,"-keep_nonzero_pattern",&keepnonzeropattern);CHKERRQ(ierr); if (keepnonzeropattern) { ierr = MatSetOption(C,MAT_KEEP_NONZERO_PATTERN,PETSC_TRUE);CHKERRQ(ierr); } ierr = MatZeroRowsIS(C,isrow,five,0,0);CHKERRQ(ierr); ierr = MatView(C,PETSC_VIEWER_STDOUT_SELF);CHKERRQ(ierr); ierr = ISDestroy(&isrow);CHKERRQ(ierr); ierr = MatDestroy(&C);CHKERRQ(ierr); ierr = PetscFinalize(); return ierr; }
PetscErrorCode TestMatZeroRows_Basic(Mat A,IS is,PetscScalar diag) { Mat B; PetscErrorCode ierr; PetscBool keepnonzeropattern; /* Now copy A into B, and test it with MatZeroRows() */ ierr = MatDuplicate(A,MAT_COPY_VALUES,&B);CHKERRQ(ierr); ierr = PetscOptionsHasName(NULL,NULL,"-keep_nonzero_pattern",&keepnonzeropattern);CHKERRQ(ierr); if (keepnonzeropattern) { ierr = MatSetOption(B,MAT_KEEP_NONZERO_PATTERN,PETSC_TRUE);CHKERRQ(ierr); } ierr = MatZeroRowsIS(B,is,diag,0,0);CHKERRQ(ierr); ierr = MatView(B,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = MatDestroy(&B);CHKERRQ(ierr); return 0; }
PetscErrorCode TestMatZeroRows(Mat A, Mat Afull, PetscBool squaretest, IS is, PetscScalar diag) { Mat B,Bcheck,B2 = NULL,lB; Vec x = NULL, b = NULL, b2 = NULL; ISLocalToGlobalMapping l2gr,l2gc; PetscReal error; char diagstr[16]; const PetscInt *idxs; PetscInt rst,ren,i,n,N,d; PetscMPIInt rank; PetscBool miss,haszerorows; PetscErrorCode ierr; PetscFunctionBeginUser; if (diag == 0.) { ierr = PetscStrcpy(diagstr,"zero");CHKERRQ(ierr); } else { ierr = PetscStrcpy(diagstr,"nonzero");CHKERRQ(ierr); } ierr = ISView(is,NULL);CHKERRQ(ierr); ierr = MatGetLocalToGlobalMapping(A,&l2gr,&l2gc);CHKERRQ(ierr); /* tests MatDuplicate and MatCopy */ if (diag == 0.) { ierr = MatDuplicate(A,MAT_COPY_VALUES,&B);CHKERRQ(ierr); } else { ierr = MatDuplicate(A,MAT_DO_NOT_COPY_VALUES,&B);CHKERRQ(ierr); ierr = MatCopy(A,B,SAME_NONZERO_PATTERN);CHKERRQ(ierr); } ierr = MatISGetLocalMat(B,&lB);CHKERRQ(ierr); ierr = MatHasOperation(lB,MATOP_ZERO_ROWS,&haszerorows);CHKERRQ(ierr); if (squaretest && haszerorows) { ierr = MatCreateVecs(B,&x,&b);CHKERRQ(ierr); ierr = MatDuplicate(B,MAT_COPY_VALUES,&B2);CHKERRQ(ierr); ierr = VecSetLocalToGlobalMapping(b,l2gr);CHKERRQ(ierr); ierr = VecSetLocalToGlobalMapping(x,l2gc);CHKERRQ(ierr); ierr = VecSetRandom(x,NULL);CHKERRQ(ierr); ierr = VecSetRandom(b,NULL);CHKERRQ(ierr); /* mimic b[is] = x[is] */ ierr = VecDuplicate(b,&b2);CHKERRQ(ierr); ierr = VecSetLocalToGlobalMapping(b2,l2gr);CHKERRQ(ierr); ierr = VecCopy(b,b2);CHKERRQ(ierr); ierr = ISGetLocalSize(is,&n);CHKERRQ(ierr); ierr = ISGetIndices(is,&idxs);CHKERRQ(ierr); ierr = VecGetSize(x,&N);CHKERRQ(ierr); for (i=0;i<n;i++) { if (0 <= idxs[i] && idxs[i] < N) { ierr = VecSetValue(b2,idxs[i],diag,INSERT_VALUES);CHKERRQ(ierr); ierr = VecSetValue(x,idxs[i],1.,INSERT_VALUES);CHKERRQ(ierr); } } ierr = VecAssemblyBegin(b2);CHKERRQ(ierr); ierr = VecAssemblyEnd(b2);CHKERRQ(ierr); ierr = VecAssemblyBegin(x);CHKERRQ(ierr); ierr = VecAssemblyEnd(x);CHKERRQ(ierr); ierr = ISRestoreIndices(is,&idxs);CHKERRQ(ierr); /* test ZeroRows on MATIS */ ierr = PetscPrintf(PETSC_COMM_WORLD,"Test MatZeroRows (diag %s)\n",diagstr);CHKERRQ(ierr); ierr = MatZeroRowsIS(B,is,diag,x,b);CHKERRQ(ierr); ierr = PetscPrintf(PETSC_COMM_WORLD,"Test MatZeroRowsColumns (diag %s)\n",diagstr);CHKERRQ(ierr); ierr = MatZeroRowsColumnsIS(B2,is,diag,NULL,NULL);CHKERRQ(ierr); } else if (haszerorows) { /* test ZeroRows on MATIS */ ierr = PetscPrintf(PETSC_COMM_WORLD,"Test MatZeroRows (diag %s)\n",diagstr);CHKERRQ(ierr); ierr = MatZeroRowsIS(B,is,diag,NULL,NULL);CHKERRQ(ierr); b = b2 = x = NULL; } else { ierr = PetscPrintf(PETSC_COMM_WORLD,"Skipping MatZeroRows (diag %s)\n",diagstr);CHKERRQ(ierr); b = b2 = x = NULL; } if (squaretest && haszerorows) { ierr = VecAXPY(b2,-1.,b);CHKERRQ(ierr); ierr = VecNorm(b2,NORM_INFINITY,&error);CHKERRQ(ierr); if (error > PETSC_SQRT_MACHINE_EPSILON) SETERRQ2(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"ERROR IN ZEROROWS ON B %g (diag %s)",error,diagstr); } /* test MatMissingDiagonal */ ierr = PetscPrintf(PETSC_COMM_WORLD,"Test MatMissingDiagonal\n");CHKERRQ(ierr); ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); ierr = MatMissingDiagonal(B,&miss,&d);CHKERRQ(ierr); ierr = MatGetOwnershipRange(B,&rst,&ren);CHKERRQ(ierr); ierr = PetscViewerASCIIPushSynchronized(PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIISynchronizedPrintf(PETSC_VIEWER_STDOUT_WORLD, "[%d] [%D,%D) Missing %d, row %D (diag %s)\n",rank,rst,ren,(int)miss,d,diagstr);CHKERRQ(ierr); ierr = PetscViewerFlush(PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = PetscViewerASCIIPopSynchronized(PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); ierr = VecDestroy(&x);CHKERRQ(ierr); ierr = VecDestroy(&b);CHKERRQ(ierr); ierr = VecDestroy(&b2);CHKERRQ(ierr); /* check the result of ZeroRows with that from MPIAIJ routines assuming that MatConvert_IS_XAIJ and MatZeroRows_MPIAIJ work fine */ if (haszerorows) { ierr = MatDuplicate(Afull,MAT_COPY_VALUES,&Bcheck);CHKERRQ(ierr); ierr = MatSetOption(Bcheck,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE);CHKERRQ(ierr); ierr = MatZeroRowsIS(Bcheck,is,diag,NULL,NULL);CHKERRQ(ierr); ierr = CheckMat(B,Bcheck,PETSC_FALSE,"Zerorows");CHKERRQ(ierr); ierr = MatDestroy(&Bcheck);CHKERRQ(ierr); } ierr = MatDestroy(&B);CHKERRQ(ierr); if (B2) { /* test MatZeroRowsColumns */ ierr = MatDuplicate(Afull,MAT_COPY_VALUES,&B);CHKERRQ(ierr); ierr = MatSetOption(B,MAT_NEW_NONZERO_ALLOCATION_ERR,PETSC_FALSE);CHKERRQ(ierr); ierr = MatZeroRowsColumnsIS(B,is,diag,NULL,NULL);CHKERRQ(ierr); ierr = CheckMat(B2,B,PETSC_FALSE,"MatZeroRowsColumns");CHKERRQ(ierr); ierr = MatDestroy(&B);CHKERRQ(ierr); ierr = MatDestroy(&B2);CHKERRQ(ierr); } PetscFunctionReturn(0); }
int main(int argc,char **args) { Mat C,A; PetscInt i,j,m = 5,n = 5,Ii,J; PetscErrorCode ierr; PetscScalar v,five = 5.0,one = 1.0; IS isrow,row,col; Vec x,u,b; PetscReal norm; MatFactorInfo info; PetscInitialize(&argc,&args,(char*)0,help); ierr = PetscOptionsGetInt(NULL,"-m",&m,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetInt(NULL,"-n",&n,NULL);CHKERRQ(ierr); ierr = MatCreateSeqAIJ(PETSC_COMM_SELF,m*n,m*n,5,NULL,&C);CHKERRQ(ierr); ierr = MatSetUp(C);CHKERRQ(ierr); /* create the matrix for the five point stencil, YET AGAIN*/ for (i=0; i<m; i++) { for (j=0; j<n; j++) { v = -1.0; Ii = j + n*i; if (i>0) {J = Ii - n; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} if (i<m-1) {J = Ii + n; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} if (j>0) {J = Ii - 1; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} if (j<n-1) {J = Ii + 1; ierr = MatSetValues(C,1,&Ii,1,&J,&v,INSERT_VALUES);CHKERRQ(ierr);} v = 4.0; ierr = MatSetValues(C,1,&Ii,1,&Ii,&v,INSERT_VALUES);CHKERRQ(ierr); } } ierr = MatAssemblyBegin(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(C,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = ISCreateStride(PETSC_COMM_SELF,(m*n)/2,0,2,&isrow);CHKERRQ(ierr); ierr = MatZeroRowsIS(C,isrow,five,0,0);CHKERRQ(ierr); ierr = VecCreateSeq(PETSC_COMM_SELF,m*n,&u);CHKERRQ(ierr); ierr = VecDuplicate(u,&x);CHKERRQ(ierr); ierr = VecDuplicate(u,&b);CHKERRQ(ierr); ierr = VecSet(u,one);CHKERRQ(ierr); ierr = MatMultTranspose(C,u,b);CHKERRQ(ierr); /* Set default ordering to be Quotient Minimum Degree; also read orderings from the options database */ ierr = MatGetOrdering(C,MATORDERINGQMD,&row,&col);CHKERRQ(ierr); ierr = MatFactorInfoInitialize(&info);CHKERRQ(ierr); ierr = MatGetFactor(C,MATSOLVERPETSC,MAT_FACTOR_LU,&A);CHKERRQ(ierr); ierr = MatLUFactorSymbolic(A,C,row,col,&info);CHKERRQ(ierr); ierr = MatLUFactorNumeric(A,C,&info);CHKERRQ(ierr); ierr = MatSolveTranspose(A,b,x);CHKERRQ(ierr); ierr = ISView(row,PETSC_VIEWER_STDOUT_SELF);CHKERRQ(ierr); ierr = VecAXPY(x,-1.0,u);CHKERRQ(ierr); ierr = VecNorm(x,NORM_2,&norm);CHKERRQ(ierr); ierr = PetscPrintf(PETSC_COMM_SELF,"Norm of error %g\n",(double)norm);CHKERRQ(ierr); ierr = ISDestroy(&row);CHKERRQ(ierr); ierr = ISDestroy(&col);CHKERRQ(ierr); ierr = ISDestroy(&isrow);CHKERRQ(ierr); ierr = VecDestroy(&u);CHKERRQ(ierr); ierr = VecDestroy(&x);CHKERRQ(ierr); ierr = VecDestroy(&b);CHKERRQ(ierr); ierr = MatDestroy(&C);CHKERRQ(ierr); ierr = MatDestroy(&A);CHKERRQ(ierr); ierr = PetscFinalize(); return 0; }
int main(int argc,char **args) { User user; Mat A,S; PetscScalar *data,diag = 1.3; PetscReal tol = PETSC_SMALL; PetscInt i,j,m = PETSC_DECIDE,n = PETSC_DECIDE,M = 17,N = 15,s1,s2; PetscInt test, ntest = 2; PetscMPIInt rank,size; PetscBool nc = PETSC_FALSE, cong; PetscBool ronl = PETSC_TRUE; PetscBool randomize = PETSC_FALSE; PetscBool keep = PETSC_FALSE; PetscBool testzerorows = PETSC_TRUE, testdiagscale = PETSC_TRUE, testgetdiag = PETSC_TRUE; PetscBool testshift = PETSC_TRUE, testscale = PETSC_TRUE, testdup = PETSC_TRUE, testreset = PETSC_TRUE; PetscErrorCode ierr; ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr); ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr); ierr = PetscOptionsGetInt(NULL,NULL,"-M",&M,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetInt(NULL,NULL,"-N",&N,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetInt(NULL,NULL,"-ml",&m,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetInt(NULL,NULL,"-nl",&n,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-square_nc",&nc,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-rows_only",&ronl,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-randomize",&randomize,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-test_zerorows",&testzerorows,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-test_diagscale",&testdiagscale,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-test_getdiag",&testgetdiag,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-test_shift",&testshift,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-test_scale",&testscale,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-test_dup",&testdup,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-test_reset",&testreset,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetInt(NULL,NULL,"-loop",&ntest,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetReal(NULL,NULL,"-tol",&tol,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetScalar(NULL,NULL,"-diag",&diag,NULL);CHKERRQ(ierr); ierr = PetscOptionsGetBool(NULL,NULL,"-keep",&keep,NULL);CHKERRQ(ierr); /* This tests square matrices with different row/col layout */ if (nc && size > 1) { M = PetscMax(PetscMax(N,M),1); N = M; m = n = 0; if (rank == 0) { m = M-1; n = 1; } else if (rank == 1) { m = 1; n = N-1; } } ierr = MatCreateDense(PETSC_COMM_WORLD,m,n,M,N,NULL,&A);CHKERRQ(ierr); ierr = MatGetLocalSize(A,&m,&n);CHKERRQ(ierr); ierr = MatGetSize(A,&M,&N);CHKERRQ(ierr); ierr = MatHasCongruentLayouts(A,&cong);CHKERRQ(ierr); ierr = MatGetOwnershipRange(A,&s1,NULL);CHKERRQ(ierr); s2 = 1; while (s2 < M) s2 *= 10; ierr = MatDenseGetArray(A,&data);CHKERRQ(ierr); for (j = 0; j < N; j++) { for (i = 0; i < m; i++) { data[j*m + i] = s2*j + i + s1 + 1; } } ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatConvert(A,MATAIJ,MAT_INPLACE_MATRIX,&A);CHKERRQ(ierr); ierr = MatSetOption(A,MAT_KEEP_NONZERO_PATTERN,keep);CHKERRQ(ierr); ierr = PetscObjectSetName((PetscObject)A,"initial");CHKERRQ(ierr); ierr = MatViewFromOptions(A,NULL,"-view_mat");CHKERRQ(ierr); ierr = PetscNew(&user);CHKERRQ(ierr); ierr = MatCreateShell(PETSC_COMM_WORLD,m,n,M,N,user,&S);CHKERRQ(ierr); ierr = MatShellSetOperation(S,MATOP_MULT,(void (*)(void))MatMult_User);CHKERRQ(ierr); ierr = MatShellSetOperation(S,MATOP_MULT_TRANSPOSE,(void (*)(void))MatMultTranspose_User);CHKERRQ(ierr); if (cong) { ierr = MatShellSetOperation(S,MATOP_GET_DIAGONAL,(void (*)(void))MatGetDiagonal_User);CHKERRQ(ierr); } ierr = MatDuplicate(A,MAT_COPY_VALUES,&user->B);CHKERRQ(ierr); /* Square and rows only scaling */ ronl = cong ? ronl : PETSC_TRUE; for (test = 0; test < ntest; test++) { PetscReal err; if (testzerorows) { Mat ST,B,C,BT,BTT; IS zr; Vec x = NULL, b1 = NULL, b2 = NULL; PetscInt *idxs = NULL, nr = 0; if (rank == (test%size)) { nr = 1; ierr = PetscMalloc1(nr,&idxs);CHKERRQ(ierr); if (test%2) { idxs[0] = (2*M - 1 - test/2)%M; } else { idxs[0] = (test/2)%M; } idxs[0] = PetscMax(idxs[0],0); } ierr = ISCreateGeneral(PETSC_COMM_WORLD,nr,idxs,PETSC_OWN_POINTER,&zr);CHKERRQ(ierr); ierr = PetscObjectSetName((PetscObject)zr,"ZR");CHKERRQ(ierr); ierr = ISViewFromOptions(zr,NULL,"-view_is");CHKERRQ(ierr); ierr = MatCreateVecs(A,&x,&b1);CHKERRQ(ierr); if (randomize) { ierr = VecSetRandom(x,NULL);CHKERRQ(ierr); ierr = VecSetRandom(b1,NULL);CHKERRQ(ierr); } else { ierr = VecSet(x,11.4);CHKERRQ(ierr); ierr = VecSet(b1,-14.2);CHKERRQ(ierr); } ierr = VecDuplicate(b1,&b2);CHKERRQ(ierr); ierr = VecCopy(b1,b2);CHKERRQ(ierr); ierr = PetscObjectSetName((PetscObject)b1,"A_B1");CHKERRQ(ierr); ierr = PetscObjectSetName((PetscObject)b2,"A_B2");CHKERRQ(ierr); if (size > 1 && !cong) { /* MATMPIAIJ ZeroRows and ZeroRowsColumns are buggy in this case */ ierr = VecDestroy(&b1);CHKERRQ(ierr); } if (ronl) { ierr = MatZeroRowsIS(A,zr,diag,x,b1);CHKERRQ(ierr); ierr = MatZeroRowsIS(S,zr,diag,x,b2);CHKERRQ(ierr); } else { ierr = MatZeroRowsColumnsIS(A,zr,diag,x,b1);CHKERRQ(ierr); ierr = MatZeroRowsColumnsIS(S,zr,diag,x,b2);CHKERRQ(ierr); ierr = ISDestroy(&zr);CHKERRQ(ierr); /* Mix zerorows and zerorowscols */ nr = 0; idxs = NULL; if (!rank) { nr = 1; ierr = PetscMalloc1(nr,&idxs);CHKERRQ(ierr); if (test%2) { idxs[0] = (3*M - 2 - test/2)%M; } else { idxs[0] = (test/2+1)%M; } idxs[0] = PetscMax(idxs[0],0); } ierr = ISCreateGeneral(PETSC_COMM_WORLD,nr,idxs,PETSC_OWN_POINTER,&zr);CHKERRQ(ierr); ierr = PetscObjectSetName((PetscObject)zr,"ZR2");CHKERRQ(ierr); ierr = ISViewFromOptions(zr,NULL,"-view_is");CHKERRQ(ierr); ierr = MatZeroRowsIS(A,zr,diag*2.0+PETSC_SMALL,NULL,NULL);CHKERRQ(ierr); ierr = MatZeroRowsIS(S,zr,diag*2.0+PETSC_SMALL,NULL,NULL);CHKERRQ(ierr); } ierr = ISDestroy(&zr);CHKERRQ(ierr); if (b1) { Vec b; ierr = VecViewFromOptions(b1,NULL,"-view_b");CHKERRQ(ierr); ierr = VecViewFromOptions(b2,NULL,"-view_b");CHKERRQ(ierr); ierr = VecDuplicate(b1,&b);CHKERRQ(ierr); ierr = VecCopy(b1,b);CHKERRQ(ierr); ierr = VecAXPY(b,-1.0,b2);CHKERRQ(ierr); ierr = VecNorm(b,NORM_INFINITY,&err);CHKERRQ(ierr); if (err >= tol) { ierr = PetscPrintf(PETSC_COMM_WORLD,"[test %D] Error b %g\n",test,(double)err);CHKERRQ(ierr); } ierr = VecDestroy(&b);CHKERRQ(ierr); } ierr = VecDestroy(&b1);CHKERRQ(ierr); ierr = VecDestroy(&b2);CHKERRQ(ierr); ierr = VecDestroy(&x);CHKERRQ(ierr); ierr = MatConvert(S,MATDENSE,MAT_INITIAL_MATRIX,&B);CHKERRQ(ierr); ierr = MatCreateTranspose(S,&ST);CHKERRQ(ierr); ierr = MatComputeOperator(ST,MATDENSE,&BT);CHKERRQ(ierr); ierr = MatTranspose(BT,MAT_INITIAL_MATRIX,&BTT);CHKERRQ(ierr); ierr = PetscObjectSetName((PetscObject)B,"S");CHKERRQ(ierr); ierr = PetscObjectSetName((PetscObject)BTT,"STT");CHKERRQ(ierr); ierr = MatConvert(A,MATDENSE,MAT_INITIAL_MATRIX,&C);CHKERRQ(ierr); ierr = PetscObjectSetName((PetscObject)C,"A");CHKERRQ(ierr); ierr = MatViewFromOptions(C,NULL,"-view_mat");CHKERRQ(ierr); ierr = MatViewFromOptions(B,NULL,"-view_mat");CHKERRQ(ierr); ierr = MatViewFromOptions(BTT,NULL,"-view_mat");CHKERRQ(ierr); ierr = MatAXPY(C,-1.0,B,SAME_NONZERO_PATTERN);CHKERRQ(ierr); ierr = MatNorm(C,NORM_FROBENIUS,&err);CHKERRQ(ierr); if (err >= tol) { ierr = PetscPrintf(PETSC_COMM_WORLD,"[test %D] Error mat mult %g\n",test,(double)err);CHKERRQ(ierr); } ierr = MatConvert(A,MATDENSE,MAT_REUSE_MATRIX,&C);CHKERRQ(ierr); ierr = MatAXPY(C,-1.0,BTT,SAME_NONZERO_PATTERN);CHKERRQ(ierr); ierr = MatNorm(C,NORM_FROBENIUS,&err);CHKERRQ(ierr); if (err >= tol) { ierr = PetscPrintf(PETSC_COMM_WORLD,"[test %D] Error mat mult transpose %g\n",test,(double)err);CHKERRQ(ierr); } ierr = MatDestroy(&ST);CHKERRQ(ierr); ierr = MatDestroy(&BTT);CHKERRQ(ierr); ierr = MatDestroy(&BT);CHKERRQ(ierr); ierr = MatDestroy(&B);CHKERRQ(ierr); ierr = MatDestroy(&C);CHKERRQ(ierr); } if (testdiagscale) { /* MatDiagonalScale() */ Vec vr,vl; ierr = MatCreateVecs(A,&vr,&vl);CHKERRQ(ierr); if (randomize) { ierr = VecSetRandom(vr,NULL);CHKERRQ(ierr); ierr = VecSetRandom(vl,NULL);CHKERRQ(ierr); } else { ierr = VecSet(vr,test%2 ? 0.15 : 1.0/0.15);CHKERRQ(ierr); ierr = VecSet(vl,test%2 ? -1.2 : 1.0/-1.2);CHKERRQ(ierr); } ierr = MatDiagonalScale(A,vl,vr);CHKERRQ(ierr); ierr = MatDiagonalScale(S,vl,vr);CHKERRQ(ierr); ierr = VecDestroy(&vr);CHKERRQ(ierr); ierr = VecDestroy(&vl);CHKERRQ(ierr); } if (testscale) { /* MatScale() */ ierr = MatScale(A,test%2 ? 1.4 : 1.0/1.4);CHKERRQ(ierr); ierr = MatScale(S,test%2 ? 1.4 : 1.0/1.4);CHKERRQ(ierr); } if (testshift && cong) { /* MatShift() : MATSHELL shift is broken when row/cols layout are not congruent and left/right scaling have been applied */ ierr = MatShift(A,test%2 ? -77.5 : 77.5);CHKERRQ(ierr); ierr = MatShift(S,test%2 ? -77.5 : 77.5);CHKERRQ(ierr); } if (testgetdiag && cong) { /* MatGetDiagonal() */ Vec dA,dS; ierr = MatCreateVecs(A,&dA,NULL);CHKERRQ(ierr); ierr = MatCreateVecs(S,&dS,NULL);CHKERRQ(ierr); ierr = MatGetDiagonal(A,dA);CHKERRQ(ierr); ierr = MatGetDiagonal(S,dS);CHKERRQ(ierr); ierr = VecAXPY(dA,-1.0,dS);CHKERRQ(ierr); ierr = VecNorm(dA,NORM_INFINITY,&err);CHKERRQ(ierr); if (err >= tol) { ierr = PetscPrintf(PETSC_COMM_WORLD,"[test %D] Error diag %g\n",test,(double)err);CHKERRQ(ierr); } ierr = VecDestroy(&dA);CHKERRQ(ierr); ierr = VecDestroy(&dS);CHKERRQ(ierr); } if (testdup && !test) { Mat A2, S2; ierr = MatDuplicate(A,MAT_COPY_VALUES,&A2);CHKERRQ(ierr); ierr = MatDuplicate(S,MAT_COPY_VALUES,&S2);CHKERRQ(ierr); ierr = MatDestroy(&A);CHKERRQ(ierr); ierr = MatDestroy(&S);CHKERRQ(ierr); A = A2; S = S2; } if (testreset && (ntest == 1 || test == ntest-2)) { /* reset MATSHELL */ ierr = MatAssemblyBegin(S,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); ierr = MatAssemblyEnd(S,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr); /* reset A */ ierr = MatCopy(user->B,A,DIFFERENT_NONZERO_PATTERN);CHKERRQ(ierr); } } ierr = MatDestroy(&A);CHKERRQ(ierr); ierr = MatDestroy(&user->B);CHKERRQ(ierr); ierr = MatDestroy(&S);CHKERRQ(ierr); ierr = PetscFree(user);CHKERRQ(ierr); ierr = PetscFinalize(); return ierr; }